The controversial exoplanet Gliese 581g is the best candidate to host life beyond our own solar system, according to a new ranking of potentially habitable alien worlds. Gliese 581g shot to the top of ...

Last month, astronomers announced the discovery of the first potentially habitable extrasolar planet. But this week at an International Astronomical Union meeting, doubts were raised about the ...

Back in September 2010, astronomers announced the discovery of a remarkable and exciting planet: it was three times our mass (high, but far closer to Earth conditions than the super-Jupiters usually ...

Scientists say they've spotted a planet way on the other side of our galactic neighborhood that may support life. That's big news. Like a seventh-grader at a school dance, we Earthlings don't like the ...

— -- Goldilocks, like most fairy tales, offers children a lesson and a happy ending. Whether a Goldilocks planet offers astronomers something similar still hangs up in the air, with the story's ...

Remember Gliese 581g? The potentially habitable “second Earth” 20 light years away, also known as Zarmina? It’s been looking dicey for a while, as many ...

After Steven Vogt and his team announced the discovery of a planet in the habitable zone of Gliese 581 in late September 2010, other astronomers failed to confirm the discovery. Yet, as Dr. Vogt told ...

A rocky alien planet called Gliese 581d may be the first known world beyond Earth capable of supporting life as we know it, a new study suggests. Astronomers performing a new atmospheric-modeling ...

YAHOO.COM - A rocky alien planet called Gliese 581d may be the first known world beyond Earth capable of supporting life as we know it, a new study suggests. Astronomers performing a new ...